Table 4.

Results of the stepwise multilevel linear regression analysis of anxiety symptoms

	Model 3*			Model 4*
	Estimate†	95% CI		Estimate†	95% CI
		Lower	Upper		Lower	Upper
Age	−0.030	−0.046	−0.014	−0.029	−0.044	−0.014
Marriage
Singled	–	–	–	–	–	–
Married/coupled	0.30	0.11	0.49	0.27	0.10	0.45
Monthly personal income
≤$439.49	–	–	–	–	–	–
$439.64–$732.58	0.054	−0.22	0.33	0.056	−0.22	0.33
$732.73–$1465.31	−0.014	−0.39	0.35	0.0043	−0.36	0.37
≥$1465.46	1.58	0.55	2.61	1.57	0.54	2.60
Years in Shenzhen	0.0027	−0.016	0.022	–	–	–
Adaption
Yes	–	–	–	–	–	–
No	0.38	0.14	0.61	0.38	0.15	0.61
Discrimination
Yes	–	–	–	–	–	–
No	−0.22	−0.38	−0.051	−0.23	−0.39	−0.063
Drinking
Yes	–	–	–	–	–	–
No	−0.077	−0.22	0.068	–	–	–
Number of mental health source	−0.0040	−0.11	0.11	–	–	–
Loneliness (ULS-6)	0.42	0.39	0.45	0.42	0.39	0.45
Impulsiveness (BIS-11)	0.060	0.046	0.074	0.065	0.053	0.078
Social support (SSRS)	−0.0025	−0.017	0.012	–	–	–
Coping
Positive coping	−0.0044	−0.021	0.012	–	–	–
Negative coping	0.086	0.062	0.11	0.080	0.059	0.10
Meaning of life (C-MLQ)	−0.0095	−0.019	0.00034	–	–	–
AIC	15 121.74			15 116.08
BIC	15 236.45			15 194.57
Adjusted R-squared	0.3845			0.3845

*Model 3 is the initial model of the multilevel linear regression analysis. Model 4 is the final model of the analysis after six iterations.

†Estimate stands for the coefficient of each variable.

AIC, Akaike information criterion; BIC, Bayesian information criterion; BIS-11, Barratt Impulsiveness Scale; C-MLQ, Chinese version of Meaning in Life Questionnaire; SSRS, Social Support Rating Scale; ULS-6, 6-item UCLA Loneliness Scale.